Abstract:
:An in vitro investigation measured the pressures produced by an Astra type aspirating syringe (modified Sterling) and a pressure syringe (Ligmaject) during periodontal ligament injections. A pressure transducer (0-6.9 MPa) was adapted to record the pressures generated within both syringes, with the output of the transducer connected to a microcomputer. Thirty-five clinicians (male: female ratio 3:2) were instructed in the technique of the periodontal ligament injection and the pressures that they produced from both syringes were recorded. Measurements of both the peak and time averaged pressures were obtained from computer print-outs of the recordings. Significantly higher pressures (P less than 0.01) were produced with the pressure syringe than with the aspirating syringe. It was also found that male operators produced significantly (P less than 0.1) higher pressure with the aspirating syringe, although there was no significant sex difference (P greater than 0.1) between the pressures recorded with the pressure syringe. Recordings from the pressure syringe revealed that either a multiple high pressure technique or a steady pressure technique was used, the former producing significantly (P less than 0.01) higher pressures.
journal_name
Br Dent Jjournal_title
British dental journalauthors
Walmsley AD,Lloyd JM,Harrington Edoi
10.1038/sj.bdj.4807030subject
Has Abstractpub_date
1989-11-25 00:00:00pages
341-4issue
10eissn
0007-0610issn
1476-5373journal_volume
167pub_type
杂志文章abstract:OBJECTIVE:To investigate the effectiveness of chargeable light curing units and their ability to sustain a high radiant output following successive discharge cycles. SETTING:University based research investigation assessing the output intensity of three battery powered light activation units and the effect of successi...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.4809431
更新日期:1997-08-09 00:00:00
abstract::There is evidence, although limited, for beneficial effects of bisphophonates (BPs) across multiple dental specialties. Within implant dentistry BP coatings have been shown to significantly increase pull out forces and bone density in animal models, and significantly increase implant stability whilst reducing marginal...
journal_title:British dental journal
pub_type: 杂志文章,评审
doi:10.1038/sj.bdj.2017.412
更新日期:2017-05-12 00:00:00
abstract::An introduction to the practical application of acupuncture in dentistry is presented in the light of current research. It is concluded that acupuncture could supplement conventional treatment modalities. Its value in the treatment of temporomandibular dysfunction syndrome and facial pain has been well documented and ...
journal_title:British dental journal
pub_type: 杂志文章,评审
doi:10.1038/sj.bdj.4800704
更新日期:2000-08-12 00:00:00
abstract::Dental disease in the form of caries and abscesses has been known since antiquity. Before the advent of anaesthesia, operations upon the mouth were painful. The introduction of general anaesthesia in the form of ether and chloroform seemed to provide a solution, but there was an unacceptable level of mortality. James ...
journal_title:British dental journal
pub_type: 传,历史文章,杂志文章
doi:10.1038/sj.bdj.2016.179
更新日期:2016-03-11 00:00:00
abstract::Modern levels of dental decay worldwide are on the rise. This study aimed to calculate historical rates of decay and compare them with recent figures. To compare the rate of dental decay in East Londoners from a post-medieval burial ground and a published modern sample, a database of human remains held at the Museum o...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/s41415-019-0737-1
更新日期:2019-10-01 00:00:00
abstract::In another article in this series the authors' preference for screw retained implant supported restorations was presented together with a literature review and rationale.(1) There remain situations when screw retention is not possible due to implant position, implant trajectory, aesthetics or function. ...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.4814205
更新日期:2006-11-11 00:00:00
abstract::A patient with intra-oral squamous cell carcinoma arising in an area of cyclosporin-induced gingival hyperplasia associated with a renal transplant is presented. This appears to be the first reported case of its kind. Subsequently, the patient developed a carcinoma of the lateral margin of the tongue, with metastasis ...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.4807594
更新日期:1991-07-06 00:00:00
abstract::A baseline study of referrals by letter to a department of conservative dentistry staffed purely by honorary consultants was conducted for one year. Distinct differences were found between the majority of patients referred from general practice and those referred from other sources. Principal reasons for referral were...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.4808084
更新日期:1993-02-06 00:00:00
abstract::Bony disease is typically evident with radiographic examination. Loss of bone mass consistent with osteoporosis is evident on plain dental radiographs, and it is reasonable to expect that anti-resorptive treatment of osteoporosis would lead to changes in radiodensity of structures visible on dental radiographs. Review...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.2017.307
更新日期:2017-04-07 00:00:00
abstract::The principal aim of this study was to assess the feasibility of conducting a systematic examination of the oral mucosa, as an integral part of the routine dental check-up and in conditions comparable with those in NHS dental practice. A total of 1949 individuals, who were already registered as patients with an indust...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.4808894
更新日期:1995-10-07 00:00:00
abstract:OBJECTIVES:Various techniques have been suggested to enable the operator to produce an even reduction of 0.5 mm of labial tooth enamel during preparation for a porcelain veneer. For example, in addition to the traditional free hand method, longitudinal or horizontal depth orientation grooves and the use of small round ...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.4801385
更新日期:2002-04-13 00:00:00
abstract::The prevalence of double teeth in the primary dentition, for the British schoolchild, is 1.6%. Although primary double teeth in the anterior region of the mouth are not uncommon, double teeth in the primary molar region are rare. This case report describes the intra-oral findings, and in particular a case of a primary...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.4807694
更新日期:1991-11-09 00:00:00
abstract::Aim Stories of dentists and their professional behaviours can be communicated around the world through news media. This may influence people's perceptions of dentistry and their trust in professionals. The aim of this study was to explore reports of dentists and their professional behaviours in newspaper media.Method ...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/s41415-020-1987-7
更新日期:2020-08-27 00:00:00
abstract::The full coverage, all-ceramic restoration of an anterior tooth is a challenging clinical situation for which a variety of all-ceramic systems and cements are available. The decision making process involves the consideration of a number of factors such as underlying substrate colour, tooth preparation geometry, margin...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.2008.735
更新日期:2008-09-13 00:00:00
abstract:INTRODUCTION:Before April 2006, English dentists were either working as an NHS general dental service (GDS) practitioner (fee-per-item, no local contractual obligations); an NHS personal dental service (PDS) practitioner (block contract with the primary care trust (PCT)); a private practitioner (either fee-per-item or ...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/bdj.2007.1204
更新日期:2008-01-12 00:00:00
abstract:OBJECTIVE:To evaluate published reviews of the appropriateness of prophylactic removal of impacted third molars. DESIGN:Systematic review and critical appraisal of relevant reviews. METHODS:Computerised databases (Medline and Embase), the Index to Dental Literature, and the references of articles were searched to ide...
journal_title:British dental journal
pub_type: 杂志文章,评审
doi:10.1038/sj.bdj.4809378
更新日期:1997-05-10 00:00:00
abstract::Hypersensitivity reactions to the commonly used denture base resins are infrequently reported. When they have been reported, most acrylic hypersensitivity reactions have been described as local contact reactions with few reports identifying any significant systemic symptoms. This paper reports a case where the patient...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.4800278
更新日期:1999-10-09 00:00:00
abstract:BACKGROUND:Dental practices have a unique position as dental staff use a high number of dental materials and instruments on a daily basis. It is unclear how dentists' and dental care professionals' choices and behaviours around selecting and using materials impact on the amount of unnecessary waste production. Although...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.2016.55
更新日期:2016-01-22 00:00:00
abstract::In Southern Arabia and Eastern Africa, qat chewing is a widely practised socio-cultural habit. It consists of placing the green-leaved plant into the mucobuccal fold and chewing it for several hours, with subsequent release of psychoactive agents. Qat chewing is often accompanied by smoking tobacco. The reported preva...
journal_title:British dental journal
pub_type: 杂志文章,评审
doi:10.1038/sj.bdj.2008.1122
更新日期:2009-01-10 00:00:00
abstract::Widely varying prevalence rates of oral lesions in patients with Crohn's disease have been reported, ranging from 0.5% to 37%. These manifestations may coincide with or precede intestinal symptoms. Oral manifestations can be classified as specific lesions, when macroscopic examination shows similar changes to those ob...
journal_title:British dental journal
pub_type: 杂志文章,评审
doi:10.1038/sj.bdj.2016.954
更新日期:2016-12-16 00:00:00
abstract::A case of oral non-Hodgkin's lymphoma presenting following a tooth extraction is reported. The clinical presentation was that of a periodontal lesion and an extraction socket that failed to heal, which may have led to initial confusion in diagnosis and management. ...
journal_title:British dental journal
pub_type: 杂志文章,评审
doi:10.1038/sj.bdj.4800308
更新日期:1999-11-13 00:00:00
abstract::Kawasaki disease (mucocutaneous lymph node syndrome) is a disease of unknown aetiology characterised by vasculitis which may affect the coronary arteries. Young children are most commonly affected although the disease has been described in adults. We report a case of recurrent Kawasaki disease which presented to an or...
journal_title:British dental journal
pub_type: 杂志文章,评审
doi:10.1038/sj.bdj.4800085
更新日期:1999-03-27 00:00:00
abstract::Although more people are retaining increasing numbers of their natural teeth into older ages, approximately 30-40% of persons over the age of 75 years in Western countries are edentulous. The causes and significance of tooth loss vary widely among individuals and cultures, and missing teeth may be replaced by a variet...
journal_title:British dental journal
pub_type: 杂志文章,评审
doi:10.1038/sj.bdj.2012.889
更新日期:2012-10-01 00:00:00
abstract:OBJECTIVE:To determine the sensitivity of conventional sensory assessment in monitoring lingual nerve recovery subsequent to third molar surgery and to evaluate if the assessment methods can be predictive of injury outcome. METHOD:A prospective case series of 94 patients presenting with lingual nerve injuries evaluate...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.4813584
更新日期:2006-05-27 00:00:00
abstract::Objectives The aim of this paper is to identify the factors that affect the complexity of implant restoration and to explore the indices that help us to assess it. With this knowledge the growing number of clinicians restoring dental implants will have a better understanding of the available guidance and evidence base...
journal_title:British dental journal
pub_type: 杂志文章,评审
doi:10.1038/sj.bdj.2016.855
更新日期:2016-11-18 00:00:00
abstract::Disorders of the blood can affect the management of dental patients. Particular oral signs may be produced. In addition healing may be affected and the choice of anaesthesia for operative procedures will be influenced. Similarly, patients who have problems with haemostasis are a concern. Surgical procedures are obviou...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.4810526
更新日期:2003-09-27 00:00:00
abstract:OBJECTIVE:To derive an estimate of encounters with halitosis and to assess the impact of halitosis on their psychosocial interactions with halitosis patients. METHODS:Participants were 1,006 members of an online panel, being representative of the population of the Netherlands with regard to gender, age, family situati...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.2014.101
更新日期:2014-02-01 00:00:00
abstract:AIM:This prospective, randomised, parallel, controlled study was conducted firstly to compare the onset of local anaesthesia (LA) when using the conventional technique versus the Wand computer-controlled LA and secondly to assess the pain experience in children. METHOD:Thirty children were randomly allocated to the tr...
journal_title:British dental journal
pub_type: 杂志文章,随机对照试验
doi:10.1038/sj.bdj.2012.988
更新日期:2012-11-01 00:00:00
abstract::The talking parrot can be given information by voice and then reproduce that information verbatim, without necessarily understanding it. I submit that the teaching, assessment and examination of dental students requires little more of them than the skills of the parrot. ...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.4808857
更新日期:1995-08-19 00:00:00
abstract::When confronting a defiant or pre-co-operative young patient with extensive dental decay the dentist must decide between treatment under conscious sedation with passive restraint or general anaesthesia. Although some practitioners prefer to attempt and exhaust sedative techniques in most cases and use general anaesthe...
journal_title:British dental journal
pub_type: 杂志文章
doi:10.1038/sj.bdj.4810932
更新日期:2004-02-14 00:00:00